Leaked source code of windows server 2003
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/*++
Copyright (c) 1996-1999 Microsoft Corporation
Module Name:
comoem.cpp
Abstract:
Necessary COM class definition to Unidrv
OEM rendering module plug-in.
Environment:
Windows NT Unidrv driver
Revision History:
// NOTICE-2002/3/11-takashim
// 98/4/24 takashim:
Written the original sample so that it is more C++.
--*/
// NTRAID#NTBUG9-588579-2002/03/28-v-sueyas-: Correct the return values for each COM I/F methods
#define INITGUID // for GUID one-time initialization
#include "pdev.h"
#include "names.h"
// Globals
static HMODULE g_hModule = NULL ; // DLL module handle
static long g_cComponents = 0 ; // Count of active components
static long g_cServerLocks = 0 ; // Count of locks
//
// IOemCB Definition
//
class IOemCB : public IPrintOemUni
{
public:
//
// IUnknown methods
//
STDMETHODIMP
QueryInterface(
const IID& iid, void** ppv)
{
VERBOSE((DLLTEXT("IOemCB: QueryInterface entry\n")));
if (iid == IID_IUnknown)
{
*ppv = static_cast<IUnknown*>(this);
VERBOSE((DLLTEXT("IOemCB:Return pointer to IUnknown.\n")));
}
else if (iid == IID_IPrintOemUni)
{
*ppv = static_cast<IPrintOemUni*>(this);
VERBOSE((DLLTEXT("IOemCB:Return pointer to IPrintOemUni.\n")));
}
else
{
*ppv = NULL ;
VERBOSE((DLLTEXT("IOemCB:Return NULL.\n")));
return E_NOINTERFACE ;
}
reinterpret_cast<IUnknown*>(*ppv)->AddRef();
return S_OK ;
}
STDMETHODIMP_(ULONG)
AddRef()
{
VERBOSE((DLLTEXT("IOemCB::AddRef() entry.\n")));
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG)
Release()
{
VERBOSE((DLLTEXT("IOemCB::Release() entry.\n")));
if (InterlockedDecrement(&m_cRef) == 0)
{
delete this ;
return 0 ;
}
return m_cRef ;
}
//
// IPrintOemCommon methods
//
// Function Name: GetInfo
// Plug-in: Any
// Driver: Any
// Type: Mandatory
//
STDMETHODIMP
GetInfo(
DWORD dwMode,
PVOID pBuffer,
DWORD cbSize,
PDWORD pcbNeeded)
{
VERBOSE((DLLTEXT("IOemCB::GetInfo() entry.\n")));
if (OEMGetInfo(dwMode, pBuffer, cbSize, pcbNeeded))
return S_OK;
else
return E_FAIL;
}
//
// Function Name: DevMode
// Plug-in: Rendering module
// Driver: Any
// Type: Optional
//
STDMETHODIMP
DevMode(
DWORD dwMode,
POEMDMPARAM pOemDMParam)
{
VERBOSE((DLLTEXT("IOemCB::DevMode() entry.\n")));
if (OEMDevMode(dwMode, pOemDMParam)) {
return S_OK;
}
else {
return E_FAIL;
}
}
//
// IPrintOemEngine methods
//
//
// Function Name: EnableDriver
// Plug-in: Rendering module
// Driver: Any
// Type: Optional
//
STDMETHODIMP
EnableDriver(
DWORD dwDriverVersion,
DWORD cbSize,
PDRVENABLEDATA pded)
{
VERBOSE((DLLTEXT("IOemCB::EnableDriver() entry.\n")));
// Sep.17.98 ->
// Need to return S_OK so that DisableDriver() will be called, which Releases
// the reference to the Printer Driver's interface.
return S_OK;
// Sep.17.98 <-
}
//
// Function Name: DisableDriver
// Plug-in: Rendering module
// Driver: Any
// Type: Optional
//
STDMETHODIMP
DisableDriver(VOID)
{
VERBOSE((DLLTEXT("IOemCB::DisaleDriver() entry.\n")));
// Sep.17.98 ->
// Release reference to Printer Driver's interface.
if (this->pOEMHelp)
{
this->pOEMHelp->Release();
this->pOEMHelp = NULL;
}
return S_OK;
// Sep.17.98 <-
}
//
// Function Name: EnablePDEV
// Plug-in: Rendering module
// Driver: Any
// Type: Optional
//
STDMETHODIMP
EnablePDEV(
PDEVOBJ pdevobj,
PWSTR pPrinterName,
ULONG cPatterns,
HSURF *phsurfPatterns,
ULONG cjGdiInfo,
GDIINFO *pGdiInfo,
ULONG cjDevInfo,
DEVINFO *pDevInfo,
DRVENABLEDATA *pded,
OUT PDEVOEM *pDevOem)
{
VERBOSE((DLLTEXT("IOemCB::EnablePDEV() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: DisablePDEV
// Plug-in: Rendering module
// Driver: Any
// Type: Optional
//
STDMETHODIMP
DisablePDEV(
PDEVOBJ pdevobj)
{
LONG lI;
VERBOSE((DLLTEXT("IOemCB::DisablePDEV() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: ResetPDEV
// Plug-in: Rendering module
// Driver: Any
// Type: Optional
//
STDMETHODIMP
ResetPDEV(
PDEVOBJ pdevobjOld,
PDEVOBJ pdevobjNew)
{
VERBOSE((DLLTEXT("IOemCB::ResetPDEV() entry.\n")));
return E_NOTIMPL;
}
//
// IPrintOemUni methods
//
//
// Function Name: PublishDriverInterface
// Plug-in: Rendering module
// Driver: Any
// Type: Mandatory
//
STDMETHODIMP
PublishDriverInterface(
IUnknown *pIUnknown)
{
VERBOSE((DLLTEXT("IOemCB::PublishDriverInterface() entry.\n")));
// Sep.8.98 ->
// Need to store pointer to Driver Helper functions, if we already haven't.
if (this->pOEMHelp == NULL)
{
HRESULT hResult;
// Get Interface to Helper Functions.
hResult = pIUnknown->QueryInterface(IID_IPrintOemDriverUni, (void** )&(this->pOEMHelp));
if(!SUCCEEDED(hResult))
{
// Make sure that interface pointer reflects interface query failure.
this->pOEMHelp = NULL;
return E_FAIL;
}
}
// Sep.8.98 <-
return S_OK;
}
//
// Function Name: GetImplementationMethod
// Plug-in: Rendering module
// Driver: Any
// Type: Mandatory
//
//
// Needed to be static so that it can be passed
// to the bsearch() as a pointer to a functin.
//
static
int __cdecl
iCompNames(
const void *p1,
const void *p2) {
return strcmp(
(NULL == p1 ? "" : *((char **)p1)),
(NULL == p2 ? "" : *((char **)p2)));
}
STDMETHODIMP
GetImplementedMethod(
PSTR pMethodName)
{
HRESULT hRet = E_NOTIMPL;
PSTR pTemp;
VERBOSE((DLLTEXT("IOemCB::GetImplementedMethod() entry.\n")));
if (SUCCEEDED(StringCchLengthA(
pMethodName, MAX_METHODNAME, NULL))) {
pTemp = (PSTR)bsearch(
&pMethodName,
gMethodsSupported,
(sizeof (gMethodsSupported) / sizeof (PSTR)),
sizeof (PSTR),
iCompNames);
if (NULL != pTemp)
hRet = S_OK;
}
VERBOSE((DLLTEXT("pMethodName = %s, hRet = %d\n"), pMethodName, hRet));
return hRet;
}
//
// Function Name: CommandCallback
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
CommandCallback(
PDEVOBJ pdevobj,
DWORD dwCallbackID,
DWORD dwCount,
PDWORD pdwParams,
OUT INT *piResult)
{
VERBOSE((DLLTEXT("IOemCB::CommandCallback() entry.\n")));
*piResult = OEMCommandCallback(pdevobj, dwCallbackID, dwCount, pdwParams);
// SECURITY:#553895: Mandatory changes (e.g. strsafe.h)
if (*piResult >= 0)
return S_OK;
else
return E_FAIL;
}
//
// Function Name: ImageProcessing
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
ImageProcessing(
PDEVOBJ pdevobj,
PBYTE pSrcBitmap,
PBITMAPINFOHEADER pBitmapInfoHeader,
PBYTE pColorTable,
DWORD dwCallbackID,
PIPPARAMS pIPParams,
OUT PBYTE *ppbResult)
{
VERBOSE((DLLTEXT("IOemCB::ImageProcessing() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: FilterGraphics
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
FilterGraphics(
PDEVOBJ pdevobj,
PBYTE pBuf,
DWORD dwLen)
{
VERBOSE((DLLTEXT("IOemCB::FilterGraphis() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: Compression
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
Compression(
PDEVOBJ pdevobj,
PBYTE pInBuf,
PBYTE pOutBuf,
DWORD dwInLen,
DWORD dwOutLen,
OUT INT *piResult)
{
VERBOSE((DLLTEXT("IOemCB::Compression() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: HalftonePattern
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
HalftonePattern(
PDEVOBJ pdevobj,
PBYTE pHTPattern,
DWORD dwHTPatternX,
DWORD dwHTPatternY,
DWORD dwHTNumPatterns,
DWORD dwCallbackID,
PBYTE pResource,
DWORD dwResourceSize)
{
VERBOSE((DLLTEXT("IOemCB::HalftonePattern() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: MemoryUsge
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
MemoryUsage(
PDEVOBJ pdevobj,
POEMMEMORYUSAGE pMemoryUsage)
{
VERBOSE((DLLTEXT("IOemCB::MemoryUsage() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: DownloadFontHeader
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
DownloadFontHeader(
PDEVOBJ pdevobj,
PUNIFONTOBJ pUFObj,
OUT DWORD *pdwResult)
{
VERBOSE((DLLTEXT("IOemCB::DownloadFontHeader() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: DownloadCharGlyph
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
DownloadCharGlyph(
PDEVOBJ pdevobj,
PUNIFONTOBJ pUFObj,
HGLYPH hGlyph,
PDWORD pdwWidth,
OUT DWORD *pdwResult)
{
VERBOSE((DLLTEXT("IOemCB::DownloadCharGlyph() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: TTDonwloadMethod
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
TTDownloadMethod(
PDEVOBJ pdevobj,
PUNIFONTOBJ pUFObj,
OUT DWORD *pdwResult)
{
VERBOSE((DLLTEXT("IOemCB::TTDownloadMethod() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: OutputCharStr
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
OutputCharStr(
PDEVOBJ pdevobj,
PUNIFONTOBJ pUFObj,
DWORD dwType,
DWORD dwCount,
PVOID pGlyph)
{
VERBOSE((DLLTEXT("IOemCB::OutputCharStr() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: SendFontCmd
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
SendFontCmd(
PDEVOBJ pdevobj,
PUNIFONTOBJ pUFObj,
PFINVOCATION pFInv)
{
VERBOSE((DLLTEXT("IOemCB::SendFontCmd() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: DriverDMS
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
DriverDMS(
PVOID pDevObj,
PVOID pBuffer,
DWORD cbSize,
PDWORD pcbNeeded)
{
VERBOSE((DLLTEXT("IOemCB::DriverDMS() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: TextOutputAsBitmap
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
TextOutAsBitmap(
SURFOBJ *pso,
STROBJ *pstro,
FONTOBJ *pfo,
CLIPOBJ *pco,
RECTL *prclExtra,
RECTL *prclOpaque,
BRUSHOBJ *pboFore,
BRUSHOBJ *pboOpaque,
POINTL *pptlOrg,
MIX mix)
{
VERBOSE((DLLTEXT("IOemCB::TextOutAsBitmap() entry.\n")));
return E_NOTIMPL;
}
//
// Function Name: TTYGetInfo
// Plug-in: Rendering module
// Driver: Unidrv
// Type: Optional
//
STDMETHODIMP
TTYGetInfo(
PDEVOBJ pdevobj,
DWORD dwInfoIndex,
PVOID pOutputBuf,
DWORD dwSize,
DWORD *pcbcNeeded)
{
VERBOSE((DLLTEXT("IOemCB::TTYGetInfo() entry.\n")));
return E_NOTIMPL;
}
//
// Constructors
//
IOemCB() { m_cRef = 1; pOEMHelp = NULL; };
~IOemCB() { };
protected:
IPrintOemDriverUni* pOEMHelp;
LONG m_cRef;
};
//
// Class factory definition
//
class IOemCF : public IClassFactory
{
public:
//
// IUnknown methods
//
STDMETHODIMP
QueryInterface(const IID& iid, void** ppv)
{
if ((iid == IID_IUnknown) || (iid == IID_IClassFactory))
{
*ppv = static_cast<IOemCF*>(this);
}
else
{
*ppv = NULL ;
return E_NOINTERFACE ;
}
reinterpret_cast<IUnknown*>(*ppv)->AddRef();
return S_OK ;
}
STDMETHODIMP_(ULONG)
AddRef()
{
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG)
Release()
{
if (InterlockedDecrement(&m_cRef) == 0)
{
delete this ;
return 0 ;
}
return m_cRef ;
}
//
// IClassFactory methods
//
STDMETHODIMP
CreateInstance(
IUnknown *pUnknownOuter,
const IID &iid,
void **ppv)
{
//VERBOSE((DLLTEXT("IOemCF::CreateInstance() called\n.")));
// Cannot aggregate.
if (NULL != pUnknownOuter) {
return CLASS_E_NOAGGREGATION;
}
// Create component.
IOemCB* pOemCB = new IOemCB;
if (NULL == pOemCB) {
return E_OUTOFMEMORY;
}
// Get the requested interface.
HRESULT hr = pOemCB->QueryInterface(iid, ppv);
// Release the IUnknown pointer.
// (If QueryInterface failed, component will delete itself.)
pOemCB->Release();
return hr ;
}
// LockServer
STDMETHODIMP
LockServer(BOOL bLock)
{
if (bLock)
{
InterlockedIncrement(&g_cServerLocks);
}
else
{
InterlockedDecrement(&g_cServerLocks);
}
return S_OK ;
}
//
// Constructor
//
IOemCF(): m_cRef(1) { };
~IOemCF() { };
protected:
LONG m_cRef;
};
//
// Export functions
//
//
// Get class factory
//
STDAPI
DllGetClassObject(
const CLSID &clsid,
const IID &iid,
void **ppv)
{
//VERBOSE((DLLTEXT("DllGetClassObject:\tCreate class factory.")));
// Can we create this component?
if (clsid != CLSID_OEMRENDER)
{
return CLASS_E_CLASSNOTAVAILABLE ;
}
// Create class factory.
IOemCF* pFontCF = new IOemCF ; // Reference count set to 1
// in constructor
if (pFontCF == NULL)
{
return E_OUTOFMEMORY ;
}
// Get requested interface.
HRESULT hr = pFontCF->QueryInterface(iid, ppv);
pFontCF->Release();
return hr ;
}
//
//
// Can DLL unload now?
//
STDAPI
DllCanUnloadNow()
{
if ((g_cComponents == 0) && (g_cServerLocks == 0))
{
return S_OK;
}
else
{
return S_FALSE;
}
}